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Finding the Third Proportional to 1,955 and 4,045

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Solution

The third proportional to 1,955 and 4,045 is: 8,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955 : 4,045 = 4,045 : x
  2. Step 2: Convert to fraction form
    1,955/4,045 = 4,045/x
  3. Step 3: Cross multiply
    1,955x = 4,045 × 4,045
  4. Step 4: Simplify right side
    1,955x = 16,362,025
  5. Step 5: Solve for x
    x = 16,362,025/1,955
  6. Step 6: Final answer
    x = 8,369.32

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.